RT journal article
T1 Assessment of ground deformation following Tenerife’s 2004 volcanic unrest (Canary Islands)
A1 Barbero Guerrero, Ignacio
A1 Torrecillas, Cristina
A1 Prates, Gonçalo
A1 Páez Jiménez, Raúl
A1 Gárate, Jorge
A1 García García, Alicia
A1 Berrocoso Domínguez, Manuel
A2 Estadística e Investigación Operativa
A2 Matemáticas
K1 Ground deformation
K1 gravitational sinking
K1 GNSS time series
K1 volcanic unrest
K1 Teide
AB After the 2004 unrest on Tenerife (Canary Islands), the Global Navigation Satellite System (GNSS) network called TEGETEIDE was designed and deployed with seven survey mode stations to contribute to a volcanic alert system. Starting in 2008, public access data from continuous GNSS stations, managed by public institutions, were included in this network allowing measurement of ground displacement at 14 locations in Tenerife. Data acquired from 2005 to 2015 was analysed to assess ground deformation in Tenerife following the 2004 volcanic unrest. The overall ground deformation depicted compression in the central Las Cañadas Caldera possibly caused by gravitational subsidence of the high central volcanic cone. This sinking is generalised around the whole island but is less in the northeast (Anaga Massif) where we found an extension rate close to 200 strain/y that could be related to a secondary submarine fault accommodating rifting to the northeast and isolating the behaviour of this massif. At the south volcanic field (south rift), another localized area with an extensional deformation was detected, possibly resulting from the subsurface fluid migration or mass addition that caused the 2004 volcanic unrest because is located following the seismic swarm alignment along Icod Valley towards Roque del Conde massif that persists since that event. We also detected residual plate velocity indicating movement of Tenerife towards Gran Canaria that should be studied in the context of the entire Canary Islands archipelago.
PB Elsevier
SN 0264-3707
YR 2018
FD 2018-06
LK http://hdl.handle.net/10498/30219
UL http://hdl.handle.net/10498/30219
LA eng
DS Repositorio Institucional de la Universidad de Cádiz
RD 07-nov-2026